Dorman 724-140 Automatic Transmission Oil Cooler Hose Assembly - Inlet and Outlet
Automatic Transmission Cooler Hose Assembly
Dorman 724-140 is an automatic transmission oil cooler hose assembly built to match the fit and function of the original line on select heavy-duty GM trucks. It is a direct replacement for leaking or damaged transmission cooler lines on 2011-2014 Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD, plus 2011-2013 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD with RPO code ZW9 base body/chassis.
- Direct replacement for the original transmission oil cooler hose assembly
- Fits inlet and outlet positions on specified applications
- Molded assembly with a 60-inch hose length
- Dual bracket mount on one end and 2 male quick connect on the other
- Black and silver hose/housing finish
- Rubber, aluminum, and steel construction for the listed assembly components
- Includes gasket or seal; fittings are not included
- Rated for -40°F to 329°F and up to 250 working pressure
Detailed Fitment and Design
This Dorman transmission cooler hose assembly is engineered to restore the factory routing and connection style used on the specified Chevrolet Silverado and GMC Sierra HD models. The molded shape, quick-connect end, and bracket-mounted end help it align with the original transmission line layout, while the durable mixed-material construction supports reliable fluid transfer in demanding truck applications. Use Dorman 724-140 when replacing a damaged or leaking transmission oil cooler hose assembly on Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, or Sierra 3500 HD models with the listed chassis configuration.
This part cross-references GM OE 20987031 for the same application.
Common Problems This Part Can Address
- Transmission fluid leaking from a cracked or worn cooler hose
- Damaged quick-connect or bracket-mounted line ends
- Corrosion or fatigue in the original transmission cooler assembly
- Improper routing caused by a bent or deformed line
- Loss of transmission cooler flow from a compromised hose assembly
Installation Notes and Tips
Verify the vehicle’s RPO code ZW9 base body/chassis before ordering. Inspect the mating cooler ports, seals, and surrounding brackets for wear or contamination before installation. Confirm the inlet and outlet routing matches the original line path, and check for secure engagement at the quick-connect and bracket-mount points after installation. Dorman 724-140 is a molded transmission line assembly, so correct alignment during installation is important for proper fit on the Chevrolet Silverado and GMC Sierra HD applications listed above.
Quality Assurance
Dorman designs this transmission oil cooler hose assembly to match the fit and function of the original assembly using durable components for replacement service on the specified GM trucks. The included gasket or seal supports a proper connection at installation.
Dorman 724-140 Automatic Transmission Oil Cooler Hose Assembly - Inlet and Outlet
Automatic Transmission Cooler Hose Assembly
Dorman 724-140 is an automatic transmission oil cooler hose assembly built to match the fit and function of the original line on select heavy-duty GM trucks. It is a direct replacement for leaking or damaged transmission cooler lines on 2011-2014 Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD, plus 2011-2013 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD with RPO code ZW9 base body/chassis.
- Direct replacement for the original transmission oil cooler hose assembly
- Fits inlet and outlet positions on specified applications
- Molded assembly with a 60-inch hose length
- Dual bracket mount on one end and 2 male quick connect on the other
- Black and silver hose/housing finish
- Rubber, aluminum, and steel construction for the listed assembly components
- Includes gasket or seal; fittings are not included
- Rated for -40°F to 329°F and up to 250 working pressure
Detailed Fitment and Design
This Dorman transmission cooler hose assembly is engineered to restore the factory routing and connection style used on the specified Chevrolet Silverado and GMC Sierra HD models. The molded shape, quick-connect end, and bracket-mounted end help it align with the original transmission line layout, while the durable mixed-material construction supports reliable fluid transfer in demanding truck applications. Use Dorman 724-140 when replacing a damaged or leaking transmission oil cooler hose assembly on Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, or Sierra 3500 HD models with the listed chassis configuration.
This part cross-references GM OE 20987031 for the same application.
Common Problems This Part Can Address
- Transmission fluid leaking from a cracked or worn cooler hose
- Damaged quick-connect or bracket-mounted line ends
- Corrosion or fatigue in the original transmission cooler assembly
- Improper routing caused by a bent or deformed line
- Loss of transmission cooler flow from a compromised hose assembly
Installation Notes and Tips
Verify the vehicle’s RPO code ZW9 base body/chassis before ordering. Inspect the mating cooler ports, seals, and surrounding brackets for wear or contamination before installation. Confirm the inlet and outlet routing matches the original line path, and check for secure engagement at the quick-connect and bracket-mount points after installation. Dorman 724-140 is a molded transmission line assembly, so correct alignment during installation is important for proper fit on the Chevrolet Silverado and GMC Sierra HD applications listed above.
Quality Assurance
Dorman designs this transmission oil cooler hose assembly to match the fit and function of the original assembly using durable components for replacement service on the specified GM trucks. The included gasket or seal supports a proper connection at installation.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
Automatic Transmission Cooler Hose Assembly
Dorman 724-140 is an automatic transmission oil cooler hose assembly built to match the fit and function of the original line on select heavy-duty GM trucks. It is a direct replacement for leaking or damaged transmission cooler lines on 2011-2014 Chevrolet Silverado 3500 HD and GMC Sierra 3500 HD, plus 2011-2013 Chevrolet Silverado 2500 HD and GMC Sierra 2500 HD with RPO code ZW9 base body/chassis.
- Direct replacement for the original transmission oil cooler hose assembly
- Fits inlet and outlet positions on specified applications
- Molded assembly with a 60-inch hose length
- Dual bracket mount on one end and 2 male quick connect on the other
- Black and silver hose/housing finish
- Rubber, aluminum, and steel construction for the listed assembly components
- Includes gasket or seal; fittings are not included
- Rated for -40°F to 329°F and up to 250 working pressure
Detailed Fitment and Design
This Dorman transmission cooler hose assembly is engineered to restore the factory routing and connection style used on the specified Chevrolet Silverado and GMC Sierra HD models. The molded shape, quick-connect end, and bracket-mounted end help it align with the original transmission line layout, while the durable mixed-material construction supports reliable fluid transfer in demanding truck applications. Use Dorman 724-140 when replacing a damaged or leaking transmission oil cooler hose assembly on Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, or Sierra 3500 HD models with the listed chassis configuration.
This part cross-references GM OE 20987031 for the same application.
Common Problems This Part Can Address
- Transmission fluid leaking from a cracked or worn cooler hose
- Damaged quick-connect or bracket-mounted line ends
- Corrosion or fatigue in the original transmission cooler assembly
- Improper routing caused by a bent or deformed line
- Loss of transmission cooler flow from a compromised hose assembly
Installation Notes and Tips
Verify the vehicle’s RPO code ZW9 base body/chassis before ordering. Inspect the mating cooler ports, seals, and surrounding brackets for wear or contamination before installation. Confirm the inlet and outlet routing matches the original line path, and check for secure engagement at the quick-connect and bracket-mount points after installation. Dorman 724-140 is a molded transmission line assembly, so correct alignment during installation is important for proper fit on the Chevrolet Silverado and GMC Sierra HD applications listed above.
Quality Assurance
Dorman designs this transmission oil cooler hose assembly to match the fit and function of the original assembly using durable components for replacement service on the specified GM trucks. The included gasket or seal supports a proper connection at installation.
